How do you get the length of a list in the JSF expression language?
el, java, jsf, jsp, jstl
Solution
Yes, since some genius in the Java API creation committee decided that, even though certain classes have `size()` members or `length` attributes, they won't implement `getSize()` or `getLength()` which JSF and most other standards require, you can't do what you want.
There's a couple ways to do this.
One: add a function to your Bean that returns the length:
In class MyBean:
public int getSomelistLength() { return this.somelist.length; }
In your JSF page:
#{MyBean.somelistLength}
Two: If you're using Facelets (Oh, God, why aren't you using Facelets!), you can add the fn namespace and use the length function
In JSF page:
#{ fn:length(MyBean.somelist) }
Problem
How would I get the length of an `ArrayList` using a JSF EL expression? ``` #{MyBean.somelist.length} ``` does not work.